TimeTubes: Visual Exploration of Observed Blazar Datasets

Fujishiro, Issei; Sawada, Naoko; Nakayama, Masanori; Wu, Hsiang‐Yun; Watanabe, Kazuho; Takahashi, Shigeo; Uemura, Makoto

doi:10.1088/1742-6596/1036/1/012011

Cited by 6 publications

(1 citation statement)

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“…During the rotation in 2014 some observations are spaced by roughly 1.5 hours and we still observe ∼ 80 o jumps during the steepest decline in the rota- tion. Using the Q-U plane visualization tool Timetubes 5 (Uemura et al 2016;Fujishiro et al 2018) we have verified that in both flaring events there is a circular motion of the Q-U vector suggesting that the observed EVPA rotations are real and not due to systematics related to e.g., sampling (an example is shown in the inset of Fig. 4 upper panel).…”

Section: Introductionmentioning

confidence: 66%

Two Flares with One Shock: The Interesting Case of 3C 454.3

Liodakis

Blinov

Jorstad

et al. 2020

ApJ

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Section: Introductionmentioning

confidence: 66%

Two Flares with One Shock: The Interesting Case of 3C 454.3

Liodakis

Blinov

Jorstad

et al. 2020

ApJ

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aflak: Visual programming environment enabling end-to-end provenance management for the analysis of astronomical datasets

et al. 2019

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Repeated pattern of gamma-ray flares in the light curve of the blazar 3C 279

Blinov

Jorstad

Larionov

et al. 2021

Monthly Notices of the Royal Astronomical Society

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The optical polarization plane of some blazars occasionally exhibits smooth hundred degree long rotations. Multiple theoretical models have been proposed to explain the nature of such events. A deterministic origin of these rotations, however, remains uncertain. We aim to find repeating patterns of flares in gamma-ray light curves of blazars, which accompany optical polarization plane rotations. Such patterns have been predicted to occur by one of the models explaining this phenomenon. For the blazar 3C 279, where multiple polarization plane rotations have been reported in the literature, we obtain the Fermi-LAT gamma-ray light curve and analyze its intervals adjacent to polarization plane rotations. We find a complex characteristic pattern of flares in the gamma-ray light curve that is repeated during periods adjacent to three large amplitude EVPA rotation events in 3C 279. We discover a ”hidden EVPA rotation”, which can only be seen in the relative Stokes parameters plane and that occurred simultaneously with the fourth repetition of the pattern. This finding strongly favors the hypothesis of emission features propagating in the jet as the reason of optical polarization plane rotations. Furthermore, it is compatible with the hypothesis of a sheath in the jet comprised of more slowly propagating emission features.

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TimeTubes: Visual Exploration of Observed Blazar Datasets

Cited by 6 publications

References 10 publications

Two Flares with One Shock: The Interesting Case of 3C 454.3

Two Flares with One Shock: The Interesting Case of 3C 454.3

aflak: Visual programming environment enabling end-to-end provenance management for the analysis of astronomical datasets

Repeated pattern of gamma-ray flares in the light curve of the blazar 3C 279

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